ATI RN
ATI Pharmacology Made Easy 4.0 Infection Questions
Question 1 of 5
The client takes calcium supplements. What is the best instruction by the nurse?
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 2 of 5
A 43-year-old man undergoes a kidney transplantation. His physician prescribes azathioprine for graft rejection prophylaxis. His past medical history is significant for gouty arthritis. Which of the following antigout drugs should he avoid while taking azathioprine?
Correct Answer: A
Rationale: Azathioprine, metabolized by xanthine oxidase, interacts with allopurinol , which inhibits this enzyme. This raises azathioprine levels, risking toxicity. Colchicine , Indomethacin , and Prednisolone don't affect this pathway. Probenecid (E) is safe. Avoiding allopurinol prevents immunosuppression complications.
Question 3 of 5
A 23-year-old man victim of a motor vehicle accident is brought to the emergency department. He is found to have a blood alcohol level of 850 mg/dL. Because of the way the body handles ethanol, the conventional 'half-life' to describe its metabolism does not apply. Which of the following drugs at therapeutic concentrations exhibits the same property?
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 4 of 5
Which antipsychotic agent has been most associated with significant QT interval prolongation and should be used with caution in patients with preexisting arrhythmias or patients taking other drugs associated with QT prolongation?
Correct Answer: A
Rationale: Thioridazine, a first-generation antipsychotic, potently blocks potassium channels, prolonging QT intervals and risking torsades de pointes, especially in patients with arrhythmias or on QT-prolonging drugs. This led to restricted use. Risperidone, asenapine, and lurasidone, second-generation agents, have milder QT effects. Aripiprazole is minimal. Thioridazine's strong association, evidenced by black box warnings, demands caution, making it the standout risk here.
Question 5 of 5
The client takes diphenhydramine (Benadryl) but forgets to tell the physician about this drug when a monoamine oxidase inhibitor (MAOI) drug is prescribed for depression. What will the best assessment by the nurse reveal?
Correct Answer: D
Rationale: Diphenhydramine, an antihistamine with anticholinergic properties, interacts dangerously with MAOIs, which inhibit monoamine breakdown. This combination can cause a hypertensive crisis due to excessive norepinephrine from inhibited metabolism, a life-threatening risk requiring urgent assessment. Depression persistence relates to MAOI efficacy, not interaction. Seizures are less common than hypertensive effects. Allergy control isn't the primary concern. The nurse's best assessment focuses on hypertensive crisis, a well-documented MAOI interaction, prioritizing immediate safety and intervention.